Timmy woke when he heard the splash. He checked the clock. It said 7:48. Only one person would be swimming at this hour. He peeked out his bedroom window and gazed down at the pool. Yep. It was his new step-mom Sandy. She was under the water and swimming toward the edge. She must have dived in from the board.
This was not the first time that Timmy had looked down at Sandy while she was in the pool. Timmy was just about to turn 19 and Sandy was only 28. Timmy's real mom had found a new boyfriend on the internet and left his dad when Timmy and his twin sister Tammy were only six. Sandy had really brightened up his father's life during the last year and a half and they had moved to this new house shortly after they married at Christmas. One of the first things his father had done was put in this new pool and a nice privacy fence around it. Since it had warmed up, Sandy would come out most mornings and swim a few laps. Timmy had gotten in the habit of watching her from his window.
Timmy, who slept nude, felt his cock becoming slowly erect. He watched as Sandy began to exit the pool and his jaw dropped. Was she? She couldn't be. Yes. She was naked! She got out of the pool and reached for a towel and began drying her shoulder length very dark brown hair. Were his eyes deceiving him? How was this happening? She must have known that either he, his father or his sister would hear the splash. Timmy watched as she went around to one of the lounge chairs and sat down. Wow! Her 36C breasts were lovelier than he ever imagined. From this height, they appeared very firm and looked to be completely natural. He was sure they were. His father had joked about it at his bachelor party and had even revealed her measurements: 36-26-35.
As she lay back on the chair she spread her legs slightly. Sandy obviously took an interest in nether region grooming. She had a nice rectangle of dark pubic hair surrounding her lower lips. It was just bushy enough to keep him from being able to make out what the hair was concealing. It didn't matter. His natural morning wood, combined with the beautiful treat his step-mom was giving him meant that he was rock hard. He wanted to return to bed to masturbate, but he couldn't tear away from the view from his window. He gazed down at her and wrapped his hand around his cock and gently squeezed.
"Timmy! What are you doing?"
Timmy turned suddenly to see his twin sister Tammy standing in the doorway to the bathroom that was between their rooms.
With the new house Timmy and Tammy shared the upstairs. They each had a room and shared the bath that was between their rooms. Tammy's eyes were wide as saucers as she gazed at his hard-on.
"Wow!" she said, "I won't be able to call you 'little brother' anymore!" (Tammy was older than Timmy by seventeen minutes and she reminded him of it every chance she got.)
Any other time Timmy's cock would have started to deflate, but wonder of wonders, Tammy was standing before him stark naked!
"What were you looking at?" she asked. She padded over to the window and looked down at Sandy.
"Why you naughty boy. It is not nice to spy, is it?"
"Uhm, sis, why don't you have on any clothes?"
Tammy replied, "You must have not gotten the note. Don't you know what today is?"
Timmy glanced at the calendar. It was July 14th. "Bastille Day?"
"No silly," Tammy said, "that is only in France. Today is National Nude Day. I found this note under my door this morning. It is from Daddy."
She handed him the note and turned to look at floor by the door to Timmy's room which went out to the landing. "See, you got one too."
Timmy read the note which simply said "Our family will join in the celebration of National Nude Day. Come to breakfast wearing only your birthday suit. Love, Dad."
"What's National Nude Day?" Timmy asked.
"I don't know, Tammy responded, "but I think we are going to find out. Looks like Sandy is playing along."
With the distraction of reading the note and the conversation with his sister, his cock, in fact, did begin to deflate. "I'm sorry, I didn't mean to interrupt you. I just didn't expect to find you like this - and looking at our new mother at that!" Tammy gazed down at Sandy and said, "She is pretty hot, isn't she?"
Timmy smiled weakly.
Tammy continued, "Do you want me to give you time to finish or shall we go down to breakfast?"
Timmy said, "Let me piss and I'll be ready to go." He went to the bathroom and shut the door.
Timmy and Tammy had a good relationship and although Tammy had joked with him many times about his masturbation habits, he didn't think that she had ever seen him before. He was wrong. She had seen him many times and in fact, was aware of what he was doing before she came into the room. In addition to having the bathroom between their rooms, they both had closets that backed up to each other. For some reason, the one in Timmy's room did not have a door. Tammy had realized when they moved into the house that she could spy on his room just by making a small nail hole in the drywall. Since the bathroom also joined the closets she had also made a small hole so she could watch him there too.
She developed a routine which matched his so that she could watch him masturbate every morning and then observe him at night before he went to sleep. She had only seen a few penises in real life, but she knew from that experience and from a more than occasional viewing of porn, that Timmy was bigger than your average boy. Usually, his morning masturbation session would take a while and would be unaided by any materials and his evening sessions would be faster with the aid of a skin magazine or a DVD. She would play with herself while she watched him and had learned to time her orgasm to his.
She had become increasingly jealous of Sandy. Timmy had begun watching her several weeks ago and would sometimes masturbate after watching her finish her morning swim. Her one wish was that he would stroke while looking at her. Didn't she have a beautiful body? Her breasts were not as big as Sandy's, but they were a solid 34B and her figure was trim from regular visits to the gym. She checked out her 34-25-34 figure in Timmy's mirror. She and Timmy had never been shy around each other and now that they were eighteen and sharing the upstairs of the house she had let him see her nude many times. She never shut his door when she was in the bathroom and made sure that she saved her shower for when he was in his room.
Anticipating that Sandy would be nude this morning, she was determined that he wouldn't cum watching her and had opted to interrupt him before he could get serious with his stroking. With a whole National Nude Day to be naked together, she wanted him to have the strength to help her live out HER fantasies.
Timmy finished in the bathroom and as he walked out he said "Well, here goes!" They walked downstairs together and then went out to the pool.
"I see you got your father's note," Sandy said with a smile. "We heard about it on the internet and I guess I sort of dared him and you know how your father is with a dare. Wow! His children are as beautiful as he is."
"You look pretty nice yourself," Tammy said. Tammy noticed that Sandy's gaze was directed at Timmy's crotch.
"Is breakfast ready?" Timmy asked, trying to hide his member behind one of the deck chairs.
Sandy said, "Tommy is fixing it in the kitchen. Let's go in."
Tammy was hesitant about going in to see her dad. Things had been a little tense between them since he had met Sandy. She had gotten used to being the only woman in the house. She couldn't deny that Sandy made him happy and she really wanted only the best for him. She knew that she wouldn't be living at home forever. Still, she felt a little jealous of Sandy's new position in her family. Then, of course, there was the National Nude Day issue and she would be seeing him naked and he would be seeing her. Oddly, she wanted her dad to desire her as much as she wanted her brother to want her.
"Daddy!" Tammy said "You are supposed to be naked!"
Tommy peeked out from behind the stove and smiled. "Well, I was until I started working at the stove. I've only got on this apron." As he said this he turned around to show her his butt. As he did he clinched his cheeks and made the muscle man stance with his biceps.
"Wow, Daddy! Your workout is really helping your glutes!"
Tommy responded, "Not bad for a 38 year old ass, huh?" Tammy went over to give him a good morning hug. "Hey, not too tight. Let's not make Sandy jealous."
Tammy said, "Oh, Daddy, she's not going to be jealous of me."
"I don't know babe, you're pretty hot," Tommy replied.
Tammy blushed and said, "Thanks, Daddy."
Timmy and Tammy sat down at the table while Sandy got some juice. Tammy noticed that Timmy could not take his eyes off of Sandy. She whispered to him "You'll have all day to see her. Stop staring." Timmy tried to comply, but couldn't help but watch Sandy's breasts bounce as she came into the room. Sandy set the juice on the table and then sat down between Timmy and Tammy.
"Sandy, I like the trim you put on your bush" Tammy said.
"Tammy!" Timmy responded and began to blush.
"Oh, Timmy, I know you noticed it too!" Tammy said.
"Thanks," Sandy responded. "It hurts like hell to get it done, but it is worth it."
"Hurts?" Tammy asked.
"Yes, Sandy replied, "I get it waxed."
"Ouch!" Tammy said with a grimace.
"Well," Sandy said as she spread her legs slightly and ran her index finger along the area between her bush and her leg, "it turns out a lot smoother this way. There's no razor burn and it lasts a lot longer. Your dad likes a tidy area.
"What about you?" Sandy continued. "What do you do to keep the stray hairs from sneaking out of that tiny yellow bikini you've been wearing?"
Tammy responded "Well, nothing." She spread her legs. "As you can see, the hair on my, um, area, has not come in as thick as yours. I guess that is one advantage of having light red hair. The hair hardly covers this part at all," she said as she ran her finger right along the slit.
"You have a very pretty pussy," Sandy said. "I like the way your outer lips completely cover and protect your inner lips. I'll bet that makes everything more sensitive. You see," she said as she parted her nether lips, my inner lips poke out slightly, "I think that I have to rub them more to get them to respond. I'll bet yours respond to the first tickle."
Timmy was beside himself. His member had become fully erect as he looked at first his step-mother's breasts, then his step-mother's pussy, then his sister's pussy and now his step-mother's pussy. He couldn't stroke it and he couldn't get up and leave because they would see it.
"Are we bothering you?" Sandy asked him.
"Um, no," Timmy quietly responded.
"Are we bothering that?" Sandy asked pointing to his erection.
"Well, maybe a little," he replied with a weak smile.